My daughter has for sale for £250 a recent Apple iPhone replaced under warranty at the Apple store. This iPhone is a 16GB 3G (not S), White, with slight cosmetic damage to a corner where she dropped it (wimmen!) The screen is 100% intact, no marks or blemishes, fully functioning.

The iPhone has been officially unlocked by Apple (via O2) and so will survive OS upgrades in the future without requiring unlocking again. It is currently sporting a Vodafone SIM (not supplied).

Please PM me in the first instance and I'll put you in touch with the seller.

Cheers